Statement of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2022	$ 1,072,706,930	$ 806	$ 1,072,706,124
Balance - Shares at Dec. 31, 2022		40	53,200,000
Purchases of Shares - Value	78,212,198		$ 78,212,198
Purchases of Shares - Shares			3,750,000
Redemption of Shares - Value	(351,156,075)		$ (351,156,075)
Redemption of Shares - Shares			(17,300,000)
Net Increase (Decrease) due to Share Transactions, value	(272,943,877)		$ (272,943,877)
Net Increase (Decrease) due to Share Transactions, shares			(13,550,000)
Net Income (Loss)
Net Investment Income (Loss)	17,284,271	$ 18	$ 17,284,253
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	18,348,092	19	18,348,073
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	1,140,326	1	1,140,325
Net Income (Loss)	36,772,689	38	36,772,651
Net Change in Shareholders' Equity, value	(236,171,188)	38	$ (236,171,226)
Net Change in Shareholders' Equity, shares			(13,550,000)
Balance - Value at Jun. 30, 2023	836,535,742	$ 844	$ 836,534,898
Balance - Shares at Jun. 30, 2023		40	39,650,000
Balance - Value at Mar. 31, 2023	908,831,541	$ 817	$ 908,830,724
Balance - Shares at Mar. 31, 2023		40	44,500,000
Purchases of Shares - Value	61,995,250		$ 61,995,250
Purchases of Shares - Shares			2,950,000
Redemption of Shares - Value	(163,030,699)		$ (163,030,699)
Redemption of Shares - Shares			(7,800,000)
Net Increase (Decrease) due to Share Transactions, value	(101,035,449)		$ (101,035,449)
Net Increase (Decrease) due to Share Transactions, shares			(4,850,000)
Net Income (Loss)
Net Investment Income (Loss)	8,764,404	$ 6	$ 8,764,398
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	18,263,577	19	18,263,558
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	1,711,669	2	1,711,667
Net Income (Loss)	28,739,650	27	28,739,623
Net Change in Shareholders' Equity, value	(72,295,799)	27	$ (72,295,826)
Net Change in Shareholders' Equity, shares			(4,850,000)
Balance - Value at Jun. 30, 2023	836,535,742	$ 844	$ 836,534,898
Balance - Shares at Jun. 30, 2023		40	39,650,000
Balance - Value at Dec. 31, 2023	704,266,570	$ 830	$ 704,265,740
Balance - Shares at Dec. 31, 2023		40	33,950,000
Purchases of Shares - Value	84,123,019		$ 84,123,019
Purchases of Shares - Shares			3,450,000
Redemption of Shares - Value	(181,656,275)		$ (181,656,275)
Redemption of Shares - Shares			(7,750,000)
Net Increase (Decrease) due to Share Transactions, value	(97,533,256)		$ (97,533,256)
Net Increase (Decrease) due to Share Transactions, shares			(4,300,000)
Net Income (Loss)
Net Investment Income (Loss)	16,414,067	$ 20	$ 16,414,047
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	125,541,505	156	125,541,349
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(39,481,023)	(49)	(39,480,974)
Net Income (Loss)	102,474,549	127	102,474,422
Net Change in Shareholders' Equity, value	4,941,293	127	$ 4,941,166
Net Change in Shareholders' Equity, shares			(4,300,000)
Balance - Value at Jun. 30, 2024	709,207,863	$ 957	$ 709,206,906
Balance - Shares at Jun. 30, 2024		40	29,650,000
Balance - Value at Mar. 31, 2024	788,734,152	$ 990	$ 788,733,162
Balance - Shares at Mar. 31, 2024		40	31,850,000
Purchases of Shares - Value	73,346,066		$ 73,346,066
Purchases of Shares - Shares			2,950,000
Redemption of Shares - Value	(126,333,155)		$ (126,333,155)
Redemption of Shares - Shares			(5,150,000)
Net Increase (Decrease) due to Share Transactions, value	(52,987,089)		$ (52,987,089)
Net Increase (Decrease) due to Share Transactions, shares			(2,200,000)
Net Income (Loss)
Net Investment Income (Loss)	8,512,219	$ 10	$ 8,512,209
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	81,138,517	101	81,138,416
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(116,189,936)	(144)	(116,189,792)
Net Income (Loss)	(26,539,200)	(33)	(26,539,167)
Net Change in Shareholders' Equity, value	(79,526,289)	(33)	$ (79,526,256)
Net Change in Shareholders' Equity, shares			(2,200,000)
Balance - Value at Jun. 30, 2024	$ 709,207,863	$ 957	$ 709,206,906
Balance - Shares at Jun. 30, 2024		40	29,650,000